lix-releng-staging/flake.nix
Lunaphied 7a1054fa5f repl: improve :doc builtin repl command to support lambdas.
For a long time `nix repl` has supported displaying documentation set on
builtins, however, it has long been convention to use Markdown comments
on Nix functions themselves for documentation. This exposes that
information to `nix repl` users in a nice and formatted way.

NixOS/rfcs#145 doc-comments are primarily what this feature is intended
to consume, however, support for lambda documentation in the repl is
experimental. We do our best effort to support the RFC here.

These changes are based on [the nix-doc library](https://github.com/lf-/nix-doc) and
are licensed under the terms described in the relevant source files.

Change-Id: Ic6fe947d39a22540705d890737e336c4720b0a22
2024-04-03 13:47:22 -06:00

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{
description = "The purely functional package manager";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11-small";
nixpkgs-regression.url = "github:NixOS/nixpkgs/215d4d0fd80ca5163643b03a33fde804a29cc1e2";
pre-commit-hooks = {
url = "github:cachix/git-hooks.nix";
inputs = {
flake-compat.follows = "flake-compat";
nixpkgs.follows = "nixpkgs";
nixpkgs-stable.follows = "nixpkgs";
};
};
flake-compat = { url = "github:edolstra/flake-compat"; flake = false; };
};
outputs = { self, nixpkgs, nixpkgs-regression, pre-commit-hooks, flake-compat }:
let
inherit (nixpkgs) lib;
inherit (lib) fileset;
officialRelease = true;
# Set to true to build the release notes for the next release.
buildUnreleasedNotes = false;
version = lib.fileContents ./.version + versionSuffix;
versionSuffix =
if officialRelease
then ""
else "pre${builtins.substring 0 8 (self.lastModifiedDate or self.lastModified or "19700101")}_${self.shortRev or "dirty"}";
linux32BitSystems = [ "i686-linux" ];
linux64BitSystems = [ "x86_64-linux" "aarch64-linux" ];
linuxSystems = linux32BitSystems ++ linux64BitSystems;
darwinSystems = [ "x86_64-darwin" "aarch64-darwin" ];
systems = linuxSystems ++ darwinSystems;
crossSystems = [
"armv6l-linux" "armv7l-linux"
"x86_64-freebsd13" "x86_64-netbsd"
];
stdenvs = [ "gccStdenv" "clangStdenv" "stdenv" "libcxxStdenv" "ccacheStdenv" ];
forAllSystems = lib.genAttrs systems;
forAllCrossSystems = lib.genAttrs crossSystems;
forAllStdenvs = f:
lib.listToAttrs
(map
(stdenvName: {
name = "${stdenvName}Packages";
value = f stdenvName;
})
stdenvs);
# Memoize nixpkgs for different platforms for efficiency.
nixpkgsFor = forAllSystems
(system: let
make-pkgs = crossSystem: stdenv: import nixpkgs {
localSystem = {
inherit system;
};
crossSystem = if crossSystem == null then null else {
system = crossSystem;
} // lib.optionalAttrs (crossSystem == "x86_64-freebsd13") {
useLLVM = true;
};
overlays = [
(overlayFor (p: p.${stdenv}))
];
config.permittedInsecurePackages = [ "nix-2.13.6" ];
};
stdenvs = forAllStdenvs (make-pkgs null);
native = stdenvs.stdenvPackages;
in {
inherit stdenvs native;
static = native.pkgsStatic;
cross = forAllCrossSystems (crossSystem: make-pkgs crossSystem "stdenv");
});
testNixVersions = pkgs: client: daemon: let
nix = pkgs.callPackage ./package.nix {
pname =
"nix-tests"
+ lib.optionalString
(lib.versionAtLeast daemon.version "2.4pre20211005" &&
lib.versionAtLeast client.version "2.4pre20211005")
"-${client.version}-against-${daemon.version}";
inherit fileset;
};
in nix.overrideAttrs (prevAttrs: {
NIX_DAEMON_PACKAGE = daemon;
NIX_CLIENT_PACKAGE = client;
dontBuild = true;
doInstallCheck = true;
configureFlags = prevAttrs.configureFlags ++ [
# We don't need the actual build here.
"--disable-build"
];
installPhase = ''
mkdir -p $out
'';
installCheckPhase = lib.optionalString pkgs.stdenv.hostPlatform.isDarwin ''
export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES
'' + ''
mkdir -p src/nix-channel
make installcheck -j$NIX_BUILD_CORES -l$NIX_BUILD_CORES
'';
});
binaryTarball = nix: pkgs:
let
inherit (pkgs) buildPackages;
installerClosureInfo = buildPackages.closureInfo { rootPaths = [ nix ]; };
in
buildPackages.runCommand "nix-binary-tarball-${version}"
{ #nativeBuildInputs = lib.optional (system != "aarch64-linux") shellcheck;
meta.description = "Distribution-independent Nix bootstrap binaries for ${pkgs.system}";
}
''
cp ${installerClosureInfo}/registration $TMPDIR/reginfo
dir=nix-${version}-${pkgs.system}
fn=$out/$dir.tar.xz
mkdir -p $out/nix-support
echo "file binary-dist $fn" >> $out/nix-support/hydra-build-products
tar cvfJ $fn \
--owner=0 --group=0 --mode=u+rw,uga+r \
--mtime='1970-01-01' \
--absolute-names \
--hard-dereference \
--transform "s,$TMPDIR/reginfo,$dir/.reginfo," \
--transform "s,$NIX_STORE,$dir/store,S" \
$TMPDIR/reginfo \
$(cat ${installerClosureInfo}/store-paths)
'';
overlayFor = getStdenv: final: prev:
let
currentStdenv = getStdenv final;
comDeps = with final; commonDeps {
inherit pkgs;
inherit (currentStdenv.hostPlatform) isStatic;
};
in {
nixStable = prev.nix;
# Forward from the previous stage as we dont want it to pick the lowdown override
nixUnstable = prev.nixUnstable;
build-release-notes =
final.buildPackages.callPackage ./maintainers/build-release-notes.nix { };
clangbuildanalyzer = final.buildPackages.callPackage ./misc/clangbuildanalyzer.nix { };
boehmgc-nix = (final.boehmgc.override {
enableLargeConfig = true;
}).overrideAttrs (o: {
patches = (o.patches or [ ]) ++ [
./boehmgc-coroutine-sp-fallback.diff
# https://github.com/ivmai/bdwgc/pull/586
./boehmgc-traceable_allocator-public.diff
];
});
default-busybox-sandbox-shell = final.busybox.override {
useMusl = true;
enableStatic = true;
enableMinimal = true;
extraConfig = ''
CONFIG_FEATURE_FANCY_ECHO y
CONFIG_FEATURE_SH_MATH y
CONFIG_FEATURE_SH_MATH_64 y
CONFIG_ASH y
CONFIG_ASH_OPTIMIZE_FOR_SIZE y
CONFIG_ASH_ALIAS y
CONFIG_ASH_BASH_COMPAT y
CONFIG_ASH_CMDCMD y
CONFIG_ASH_ECHO y
CONFIG_ASH_GETOPTS y
CONFIG_ASH_INTERNAL_GLOB y
CONFIG_ASH_JOB_CONTROL y
CONFIG_ASH_PRINTF y
CONFIG_ASH_TEST y
'';
};
nix-doc = final.callPackage ./nix-doc/package.nix {};
nix = final.callPackage ./package.nix {
inherit versionSuffix fileset;
stdenv = currentStdenv;
boehmgc = final.boehmgc-nix;
busybox-sandbox-shell = final.busybox-sandbox-shell or final.default-busybox-sandbox-shell;
nix-doc = final.nix-doc;
};
};
in {
# A Nixpkgs overlay that overrides the 'nix' and
# 'nix.perl-bindings' packages.
overlays.default = overlayFor (p: p.stdenv);
hydraJobs = {
# Binary package for various platforms.
build = forAllSystems (system: self.packages.${system}.nix);
# FIXME(Qyriad): remove this when the migration to Meson has been completed.
# NOTE: mesonBuildClang depends on mesonBuild depends on build to avoid OOMs
# on aarch64 builders caused by too many parallel compiler/linker processes.
mesonBuild = forAllSystems (system:
(self.packages.${system}.nix.override {
buildWithMeson = true;
}).overrideAttrs (prev: {
buildInputs = prev.buildInputs ++ [ self.packages.${system}.nix ];
}));
mesonBuildClang = forAllSystems (system:
(nixpkgsFor.${system}.stdenvs.clangStdenvPackages.nix.override {
buildWithMeson = true;
}).overrideAttrs (prev: {
buildInputs = prev.buildInputs ++ [ self.hydraJobs.mesonBuild.${system} ];
})
);
# Perl bindings for various platforms.
perlBindings = forAllSystems (system: nixpkgsFor.${system}.native.nix.perl-bindings);
# Binary tarball for various platforms, containing a Nix store
# with the closure of 'nix' package.
binaryTarball = forAllSystems (system: binaryTarball nixpkgsFor.${system}.native.nix nixpkgsFor.${system}.native);
# docker image with Nix inside
dockerImage = lib.genAttrs linux64BitSystems (system: self.packages.${system}.dockerImage);
# API docs for Nix's unstable internal C++ interfaces.
internal-api-docs = let
nixpkgs = nixpkgsFor.x86_64-linux.native;
inherit (nixpkgs) pkgs;
nix = pkgs.callPackage ./package.nix {
inherit versionSuffix fileset officialRelease buildUnreleasedNotes;
inherit (pkgs) build-release-notes;
internalApiDocs = true;
boehmgc = pkgs.boehmgc-nix;
busybox-sandbox-shell = pkgs.busybox-sandbox-shell;
};
in
nix.overrideAttrs (prev: {
# This Hydra job is just for the internal API docs.
# We don't need the build artifacts here.
dontBuild = true;
doCheck = false;
doInstallCheck = false;
});
# System tests.
tests = import ./tests/nixos { inherit lib nixpkgs nixpkgsFor; } // {
# Make sure that nix-env still produces the exact same result
# on a particular version of Nixpkgs.
evalNixpkgs =
with nixpkgsFor.x86_64-linux.native;
runCommand "eval-nixos" { buildInputs = [ nix ]; }
''
type -p nix-env
# Note: we're filtering out nixos-install-tools because https://github.com/NixOS/nixpkgs/pull/153594#issuecomment-1020530593.
time nix-env --store dummy:// -f ${nixpkgs-regression} -qaP --drv-path | sort | grep -v nixos-install-tools > packages
[[ $(sha1sum < packages | cut -c1-40) = 402242fca90874112b34718b8199d844e8b03d12 ]]
mkdir $out
'';
nixpkgsLibTests =
forAllSystems (system:
import (nixpkgs + "/lib/tests/release.nix")
{ pkgs = nixpkgsFor.${system}.native;
nixVersions = [ self.packages.${system}.nix ];
}
);
};
pre-commit = builtins.mapAttrs (system: pre-commit-lib: pre-commit-lib.run {
src = self;
hooks = {
no-commit-to-branch = {
enable = true;
settings.branch = ["main"];
};
check-case-conflicts.enable = true;
check-executables-have-shebangs = {
enable = true;
stages = [ "commit" ];
};
check-shebang-scripts-are-executable = {
enable = true;
stages = [ "commit" ];
};
check-symlinks = {
enable = true;
excludes = [ "^tests/functional/lang/symlink-resolution/broken$" ];
};
check-merge-conflicts.enable = true;
end-of-file-fixer = {
enable = true;
excludes = [
"\\.drv$"
"^tests/functional/lang/"
];
};
mixed-line-endings = {
enable = true;
excludes = [ "^tests/functional/lang/" ];
};
# TODO: Once the test suite is nicer, clean up and start
# enforcing trailing whitespace on tests that don't explicitly
# check for it.
trim-trailing-whitespace = {
enable = true;
stages = [ "commit" ];
excludes = [ "^tests/functional/lang/" ];
};
treefmt = {
enable = true;
settings.formatters = [ ];
};
};
}) pre-commit-hooks.lib;
};
checks = forAllSystems (system: let
rl-next-check = name: dir:
let pkgs = nixpkgsFor.${system}.native;
in pkgs.buildPackages.runCommand "test-${name}-release-notes" { } ''
LANG=C.UTF-8 ${lib.getExe pkgs.build-release-notes} ${dir} >$out
'';
in {
# FIXME(Qyriad): remove this when the migration to Meson has been completed.
mesonBuild = self.hydraJobs.mesonBuild.${system};
mesonBuildClang = self.hydraJobs.mesonBuildClang.${system};
binaryTarball = self.hydraJobs.binaryTarball.${system};
perlBindings = self.hydraJobs.perlBindings.${system};
nixpkgsLibTests = self.hydraJobs.tests.nixpkgsLibTests.${system};
rl-next = rl-next-check "rl-next" ./doc/manual/rl-next;
rl-next-dev = rl-next-check "rl-next-dev" ./doc/manual/rl-next-dev;
pre-commit = self.hydraJobs.pre-commit.${system};
} // (lib.optionalAttrs (builtins.elem system linux64BitSystems)) {
dockerImage = self.hydraJobs.dockerImage.${system};
});
packages = forAllSystems (system: rec {
inherit (nixpkgsFor.${system}.native) nix;
default = nix;
} // (lib.optionalAttrs (builtins.elem system linux64BitSystems) {
nix-static = nixpkgsFor.${system}.static.nix;
dockerImage =
let
pkgs = nixpkgsFor.${system}.native;
image = import ./docker.nix { inherit pkgs; tag = version; };
in
pkgs.runCommand
"docker-image-tarball-${version}"
{ meta.description = "Docker image with Nix for ${system}"; }
''
mkdir -p $out/nix-support
image=$out/image.tar.gz
ln -s ${image} $image
echo "file binary-dist $image" >> $out/nix-support/hydra-build-products
'';
} // builtins.listToAttrs (map
(crossSystem: {
name = "nix-${crossSystem}";
value = nixpkgsFor.${system}.cross.${crossSystem}.nix;
})
crossSystems)
// builtins.listToAttrs (map
(stdenvName: {
name = "nix-${stdenvName}";
value = nixpkgsFor.${system}.stdenvs."${stdenvName}Packages".nix;
})
stdenvs)));
devShells = let
makeShell = pkgs: stdenv:
let
nix = pkgs.callPackage ./package.nix {
inherit stdenv versionSuffix fileset;
boehmgc = pkgs.boehmgc-nix;
busybox-sandbox-shell = pkgs.busybox-sandbox-shell or pkgs.default-busybox-sandbox;
forDevShell = true;
};
pre-commit = self.hydraJobs.pre-commit.${pkgs.system} or {};
in
(nix.override {
buildUnreleasedNotes = true;
officialRelease = false;
}).overrideAttrs (prev: {
# Required for clang-tidy checks
buildInputs = prev.buildInputs
++ [ pkgs.just ]
++ lib.optional (pre-commit ? enabledPackages) pre-commit.enabledPackages
++ lib.optionals (stdenv.cc.isClang) [ pkgs.llvmPackages.llvm pkgs.llvmPackages.clang-unwrapped.dev ];
nativeBuildInputs = prev.nativeBuildInputs
++ lib.optional (stdenv.cc.isClang && !stdenv.buildPlatform.isDarwin) pkgs.buildPackages.bear
# Required for clang-tidy checks
++ lib.optionals (stdenv.cc.isClang) [ pkgs.buildPackages.cmake pkgs.buildPackages.ninja pkgs.buildPackages.llvmPackages.llvm.dev ]
++ lib.optional
(stdenv.cc.isClang && stdenv.hostPlatform == stdenv.buildPlatform)
# for some reason that seems accidental and was changed in
# NixOS 24.05-pre, clang-tools is pinned to LLVM 14 when
# default LLVM is newer.
(pkgs.buildPackages.clang-tools.override { inherit (pkgs.buildPackages) llvmPackages; })
++ [
# FIXME(Qyriad): remove once the migration to Meson is complete.
pkgs.buildPackages.meson
pkgs.buildPackages.ninja
pkgs.buildPackages.cmake
pkgs.buildPackages.clangbuildanalyzer
];
src = null;
installFlags = "sysconfdir=$(out)/etc";
strictDeps = false;
shellHook = ''
PATH=$prefix/bin:$PATH
unset PYTHONPATH
export MANPATH=$out/share/man:$MANPATH
# Make bash completion work.
XDG_DATA_DIRS+=:$out/share
${lib.optionalString (pre-commit ? shellHook) pre-commit.shellHook}
'';
} // lib.optionalAttrs (stdenv.buildPlatform.isLinux && pkgs.glibcLocales != null) {
# Required to make non-NixOS Linux not complain about missing locale files during configure in a dev shell
LOCALE_ARCHIVE = "${lib.getLib pkgs.glibcLocales}/lib/locale/locale-archive";
});
in
forAllSystems (system:
let
makeShells = prefix: pkgs:
lib.mapAttrs'
(k: v: lib.nameValuePair "${prefix}-${k}" v)
(forAllStdenvs (stdenvName: makeShell pkgs pkgs.${stdenvName}));
in
(makeShells "native" nixpkgsFor.${system}.native) //
(makeShells "static" nixpkgsFor.${system}.static) //
(forAllCrossSystems (crossSystem: let pkgs = nixpkgsFor.${system}.cross.${crossSystem}; in makeShell pkgs pkgs.stdenv)) //
{
default = self.devShells.${system}.native-stdenvPackages;
}
);
};
}